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According to the theory of demographic transition, birth rates may drop below death rates during phase

4

If a city with a population of 10,000 experiences 100 births, 40 deaths, 10 immigrants, and 30 emigrants within the course of one year, what is net annual percentage growth rate?

0.4%

If the population of a country grows at a rate of approximately 5 percent per year, the number of years required for the population to double is closest to

15 years

A country has a population of 100 million and an annual growth rate of 3.5 percent. In what year will the population reach 400 million? Assume the growth rate remains constant and the year is currently 2014.

2054

Which of the following could contribute the greatest number to total population size in one year?

A country of 500 million people with a growth rate of 1.5%

Southeast Asian flying foxes are responsible for pollinating

A keystone species

Which of the following characteristics of an area would support a higher extent of biodiversity?

A lower latitude

By the year 2050, world population is expected to approach 10 billion. If the current population trends continue, which region of the world will most likely experience the majority of the growth?

Africa and Asia

A successful health campaign in Thailand to reduce population growth included which of the following efforts?

All of them

What is the most populous country in the world?

China

Which type of population distribution can enhance protection from predators?

Clumped distribution

Which of the following best exemplifies population momentum?

Continued growth of a population after fertility drops to replacement level

Factors that affect the total fertility rate of a human population include which of the following?

Cultural traditions, Government policies and economic incentives, education level and economic opportunities for females

In a human population undergoing the demographic transition, which of the following generally decreases first?

Death rate

Mutualism

Exemplified by bees consuming nectar and carrying pollen from one flower to another

Competition

Exemplified by starlings displacing bluebirds from nesting sites

Parasitism

Exemplified by ticks feeding on a deer

Countries undergoing rapid population growth include which of the following?

I only

An equation to estimate a human population's ecological impact variables

I quadruples

Mutualism

In order for the plover to get food it sets itself in the crocodile's mouth and eats the leftover meat out of its teeth. In return for the free food, the crocodile gets its teeth clean and avoids inflection

Two species of aster can be found in New York. When one species is removed, the other species shows a significant increase in its population the next season

Interspecific competition

A rocky island appears as oceanic waters recede. Which of the following forms of vegetation would probably appear first on the bare rocks?

Lichens

Which of the following is most typically associated with the transition from a rural to an urbanized society?

Reduced birth rates

Which of the following statements about succession is true?

Secondary succession can occur where a disturbance has left soil intact

The increase in the size of Earth's human population in the last century has been dramatic. Which of the following identifies two major contributors to this increase?

The Industrial Revolution and modern medicine

What two main factors would best indicate the quality of life of a country's population?

The life expectancy and infant mortality rate

Which of the is a true statement about the total fertility of a society?

The total fertility of a society decreases as the society progresses through the demographic transition

As a country goes through the demographic transition, the greatest rate of population growth takes place during which phase?

The transitional phase

Which of the following is generally true of K-strategist species as compared to r-strategist species?

They have longer life spans

Community

This is the smallest level of complexity that includes multiple species

A small, scattered population

Which would be least likely to be affected by a density-dependent limiting factor?

Women in developed countries live longer than men because of which of the following?

Women are more likely to seek medical care and Men are more likely to smoke

The number and types of species within a biome present are determined by these 3 processes:

colonization, speciation, extinction

The graph above shows the results obtained when two species of Paramecium were growth together in the same medium. This best exemplifies

competitive exclusion

During the winter of 1999, minimum temperatures....

density-independent regulation

A country with an age distribution like that shown in the figure above, is most likely a country that

has slow or no population growth

Based on the theory of island biogeography, you would predict that large islands near the mainland would have relatively

high immigration and low extinction rates

Although the fertility rate for women in the U.S has declined in recent years to a value below replacement level, the U.S population is still increasing because of

immigration

Of the following characteristics, which three are typical of k-selected species?

late successional colonization, few but large offspring, and specialist niche

The basic unit of evolution is

population

When the exponential phase of a logistic growth curve of a population ceases,

population growth begins to slow down

Which of the following are incorrectly paired?

r-strategist - type I survivorship

Which of the following is a density-independent limiting factor?

temperature

Women have had fewer and healthier children when all of the following are true except

they have little education

Oysters produce millions of offspring, but most offspring die from predation or other causes; those that survive long enough to produce a hard shell can live a relatively long life as adults. What type of survivorship is this?

type I


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